<template>
    <view class="u-cell" :class="[customClass]" :style="[$u.addStyle(customStyle)]"
        :hover-class="(!disabled && (clickable || isLink)) ? 'u-cell--clickable' : ''" :hover-stay-time="250"
        @tap="clickHandler">
        <view class="u-cell__body" :class="[center && 'u-cell--center', size === 'large' && 'u-cell__body--large']">
            <view class="u-cell__body__content">
                <view class="u-cell__left-icon-wrap" v-if="$slots.icon || icon">
                    <slot name="icon" v-if="$slots.icon">
                    </slot>
                    <u-icon v-else :name="icon" :custom-style="iconStyle" :size="size === 'large' ? 22 : 18"></u-icon>
                </view>
                <view class="u-cell__title">
                    <slot name="title">
                        <text v-if="title" class="u-cell__title-text" :style="[titleTextStyle]"
                            :class="[required && 'u-cell--required', disabled && 'u-cell--disabled', size === 'large' && 'u-cell__title-text--large']">{{
                                title }}</text>
                    </slot>
                    <slot name="label">
                        <text class="u-cell__label" v-if="label"
                            :class="[disabled && 'u-cell--disabled', size === 'large' && 'u-cell__label--large']">{{
                                label }}</text>
                    </slot>
                </view>
            </view>
            <slot name="value">
                <text class="u-cell__value"
                    :class="[disabled && 'u-cell--disabled', size === 'large' && 'u-cell__value--large']"
                    v-if="!$u.test.empty(value)">{{ value }}</text>
            </slot>
            <view class="u-cell__right-icon-wrap" v-if="$slots['right-icon'] || isLink"
                :class="[`u-cell__right-icon-wrap--${arrowDirection}`]">
                <slot name="right-icon" v-if="$slots['right-icon']">
                </slot>
                <u-icon v-else :name="rightIcon" :custom-style="rightIconStyle" :color="disabled ? '#c8c9cc' : 'info'"
                    :size="size === 'large' ? 18 : 16"></u-icon>
            </view>
        </view>
        <u-line v-if="border" :color="elBorderColor"></u-line>
    </view>
</template>

<script>
import props from './props.js';
import mixin from '../../libs/mixin/mixin'
import mpMixin from '../../libs/mixin/mpMixin';
/**
 * cell  单元格
 * @description cell单元格一般用于一组列表的情况，比如个人中心页，设置页等。
 * @tutorial https://uviewui.com/components/cell.html
 * @property {String | Number}	title			标题
 * @property {String | Number}	label			标题下方的描述信息
 * @property {String | Number}	value			右侧的内容
 * @property {String}			icon			左侧图标名称，或者图片链接(本地文件建议使用绝对地址)
 * @property {Boolean}			disabled		是否禁用cell	
 * @property {Boolean}			border			是否显示下边框 (默认 true )
 * @property {Boolean}			center			内容是否垂直居中(主要是针对右侧的value部分) (默认 false )
 * @property {String}			url				点击后跳转的URL地址
 * @property {String}			linkType		链接跳转的方式，内部使用的是uView封装的route方法，可能会进行拦截操作 (默认 'navigateTo' )
 * @property {Boolean}			clickable		是否开启点击反馈(表现为点击时加上灰色背景) （默认 false ） 
 * @property {Boolean}			isLink			是否展示右侧箭头并开启点击反馈 （默认 false ）
 * @property {Boolean}			required		是否显示表单状态下的必填星号(此组件可能会内嵌入input组件) （默认 false ）
 * @property {String}			rightIcon		右侧的图标箭头 （默认 'arrow-right'）
 * @property {String}			arrowDirection	右侧箭头的方向，可选值为：left，up，down
 * @property {Object | String}			rightIconStyle	右侧箭头图标的样式
 * @property {Object | String}			titleStyle		标题的样式
 * @property {Object | String}			iconStyle		左侧图标样式
 * @property {String}			size			单位元的大小，可选值为 large，normal，mini 
 * @property {Boolean}			stop			点击cell是否阻止事件传播 (默认 true )
 * @property {Object}			customStyle		定义需要用到的外部样式
 * @property {String}			borderColor		边框颜色
 * @event {Function}			click			点击cell列表时触发
 * @example 该组件需要搭配cell-group组件使用，见官方文档示例
 */
export default {
    name: 'u-cell',
    data() {
        return {
            parentData: {
                borderColor: '',
            }
        };
    },
    mixins: [mpMixin, mixin, props],
    computed: {
        titleTextStyle() {
            return uni.$u.addStyle(this.titleStyle);
        },
        elBorderColor() {
			//console.log(2222,this.borderColor,this.parentData.borderColor)
            return this.borderColor ? this.borderColor : this.parentData.borderColor
        }
    },
    mounted() {
        this.init()
    },
    // #ifdef VUE3
    emits: ["click"],
    // #endif
    methods: {
        init() {
            // 支付宝小程序不支持provide/inject，所以使用这个方法获取整个父组件，在created定义，避免循环引用
            this.updateParentData()
            // if (!this.parent) {
            //     uni.$u.error('u-cell必须搭配u-cell-group组件使用')
            // }
        },
        updateParentData() {
            this.getParentData('u-cell-group')
        },
        // 点击cell
        clickHandler(e) {
            if (this.disabled) return;
            this.$emit('click', {
                name: this.name
            });
            // 如果配置了url(此props参数通过mixin引入)参数，跳转页面
            this.openPage();
            // 是否阻止事件传播
            this.stop && this.preventEvent(e);
        },
    }
};
</script>

<style lang="scss" scoped>
@import "../../libs/css/components.scss";

$u-cell-padding: 10px 15px !default;
$u-cell-font-size: 15px !default;
$u-cell-line-height: 24px !default;
$u-cell-color: $u-main-color !default;
$u-cell-icon-size: 16px !default;
$u-cell-title-font-size: 15px !default;
$u-cell-title-line-height: 22px !default;
$u-cell-title-color: $u-main-color !default;
$u-cell-label-font-size: 12px !default;
$u-cell-label-color: $u-tips-color !default;
$u-cell-label-line-height: 18px !default;
$u-cell-value-font-size: 14px !default;
$u-cell-value-color: $u-content-color !default;
$u-cell-clickable-color: $u-bg-color !default;
$u-cell-disabled-color: #c8c9cc !default;
$u-cell-padding-top-large: 13px !default;
$u-cell-padding-bottom-large: 13px !default;
$u-cell-value-font-size-large: 15px !default;
$u-cell-label-font-size-large: 14px !default;
$u-cell-title-font-size-large: 16px !default;
$u-cell-left-icon-wrap-margin-right: 4px !default;
$u-cell-right-icon-wrap-margin-left: 4px !default;
$u-cell-title-flex: 1 !default;
$u-cell-label-margin-top: 5px !default;


.u-cell {
    &__body {
        @include flex();
        /* #ifndef APP-NVUE */
        box-sizing: border-box;
        /* #endif */
        padding: $u-cell-padding;
        font-size: $u-cell-font-size;
        color: $u-cell-color;
        // line-height: $u-cell-line-height;
        align-items: center;

        &__content {
            @include flex(row);
            align-items: center;
            flex: 1;
        }

        &--large {
            padding-top: $u-cell-padding-top-large;
            padding-bottom: $u-cell-padding-bottom-large;
        }
    }

    &__left-icon-wrap,
    &__right-icon-wrap {
        @include flex();
        align-items: center;
        // height: $u-cell-line-height;
        font-size: $u-cell-icon-size;
    }

    &__left-icon-wrap {
        margin-right: $u-cell-left-icon-wrap-margin-right;
    }

    &__right-icon-wrap {
        margin-left: $u-cell-right-icon-wrap-margin-left;
        transition: transform 0.3s;

        &--up {
            transform: rotate(-90deg);
        }

        &--down {
            transform: rotate(90deg);
        }
    }

    &__title {
        flex: $u-cell-title-flex;

        &-text {
            font-size: $u-cell-title-font-size;
            line-height: $u-cell-title-line-height;
            color: $u-cell-title-color;

            &--large {
                font-size: $u-cell-title-font-size-large;
            }
        }

    }

    &__label {
        margin-top: $u-cell-label-margin-top;
        font-size: $u-cell-label-font-size;
        color: $u-cell-label-color;
        line-height: $u-cell-label-line-height;

        &--large {
            font-size: $u-cell-label-font-size-large;
        }
    }

    &__value {
        text-align: right;
        font-size: $u-cell-value-font-size;
        line-height: $u-cell-line-height;
        color: $u-cell-value-color;

        &--large {
            font-size: $u-cell-value-font-size-large;
        }
    }

    &--required {
        /* #ifndef APP-NVUE */
        overflow: visible;
        /* #endif */
        @include flex;
        align-items: center;
    }

    &--required:before {
        position: absolute;
        /* #ifndef APP-NVUE */
        content: '*';
        /* #endif */
        left: -10px;
        margin-top: 2px;
        font-size: 14px;
        color: $u-error;
    }

    &--clickable {
        background-color: $u-cell-clickable-color;
    }

    &--disabled {
        color: $u-cell-disabled-color;
        /* #ifndef APP-NVUE */
        cursor: not-allowed;
        /* #endif */
    }

    &--center {
        align-items: center;
    }
}
</style>
